Activity
University of Waterloo (Canada)

University of Waterloo: Arithmagic: Mental Math

For Students Pre-K - 1st Standards
Test your mental math skills in arithmetic. How many questions can you answer in one minute? Good luck!
Handout
National Council of Teachers of Mathematics

The Math Forum: Ask Dr. Math: Dividing Fractions

For Students 5th - 6th
This site has an explanation of how to divide fractions by multiplying the reciprocal of the denominator. It explains why you invert and multiply! This site also contains links to numerous Math Forum sites pertaining to fractions,...
Unit Plan
Khan Academy

Khan Academy: Order of Operations Challenge

For Students 5th - 7th Standards
Practice solving more challenging problems using the order of operations. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Lesson Plan
Other

Nearpod: Equations & Inequalities (Numeric/symbolic)

For Teachers 9th - 10th
In this lesson on solving equations and inequalities, students explore the solving equations and inequalities are the same and different by exploring the effects of negative numbers and using inverse operations when solving side by side.
Unit Plan
Lawrence Hall of Science

The Math Page: Skill in Arithmetic: Add and Subtract Fractions

For Students 2nd - 5th Standards
This Math Page tutorial explains how to add and subtract fractions and features a practice section at the very end of the lesson.
Unit Plan
Lawrence Hall of Science

The Math Page: Skill in Arithmetic: Multiply and Divide Fractions

For Students 3rd - 8th Standards
This Math Page tutorial explains how to multiply and divide fractions and then features a practice exercise.
Professional Doc
Queen's Printer for Ontario

E workshop.on.ca: Number Sense and Numeration, Grds 4 6: Addition, Subtract [Pdf]

For Teachers 3rd - 8th Standards
Volume 2 of an eworkshop Guide to Effective Instruction in Math outlines and illustrates instructional strategies for teaching addition and subtraction to students in grades 4 through 6. Include a series of suggested activities.
Activity
Lawrence Hall of Science

The Math Page: Skill in Arithmetic: Fractions Into Decimals

For Students 3rd - 8th
This Math Page tutorial explains how to change a fraction to a decimal and features a practice section at the end of the lesson.
Lesson Plan
Illustrative Mathematics

Illustrative Mathematics: Using Operations and Parentheses

For Teachers 4th - 8th Standards
The purpose of this task is to give students a chance to work creatively with three of the four fundamental arithmetic operations (addition, subtraction, and multiplication). It is well suited for helping students develop fluency with...
Activity
Discovery Education

Discovery Education: Web Math: Crunch a Numerical Expression (No Variables)

For Students 9th - 10th Standards
Use this "math solver" to help you understand and evaluate any numerical expression that does not involve variables. Simply type your expression in, and allow this website to provide step-by-step instructions on how to evaluate the...
Unit Plan
Texas A&M University

Wtamu Virtual Math Lab: Intermediate Algebra

For Students 9th - 10th
This site is a tutorial for students in algebra 2 or for those who need a refresher. The site has explanations, definitions, examples, practice problems and practice tests are found covering topics such as linear equations, graphing,...
Unit Plan
AAA Math

Aaa Math: Comparing Fractions

For Students 5th
Explains how to compare fractions with unlike numerators and denominators, and includes games to practice this skill.
Professional Doc
Louisiana Department of Education

Louisiana Doe: Louisiana Believes: Eureka Math Parent Guide: Fraction Equivalence, Ordering, and Operations

For Students 4th Standards
A guide to support parents as they work with their students in fraction equivalence, ordering, and operations.
Unit Plan
AAA Math

Aaa Math: Comparing Fractions Like Denominators

For Students 9th - 10th Standards
This personal site explains how to compare fractions with the same denominator, gives examples, and includes games to practice the new skill. CCSS.Math.Content.3.NF.A.3.d Compare two fractions with the same numerator or the same...
Unknown Type
Other

Smart Math Worksheets: Math Worksheets

For Teachers 9th - 10th
Cover a great deal of content with these downloadable worksheets. Topics include fractions, division, addition, numeration, geometry, subtraction, multiplication, integers, decimals and algebra.
Professional Doc
Queen's Printer for Ontario

E workshop.on.ca: Effective Instruction in Math, 4 6: Big Ideas [Pdf]

For Teachers 3rd - 8th Standards
Volume 1 in an eworkshop Guide to Effective Instruction in Math outlines and illustrates instructional strategies for explaining five big ideas of number sense and numeration to students in grades 4 through 6: quantity, operational...
Lesson Plan
Illustrative Mathematics

Illustrative Mathematics: Watch Out for Parentheses 1

For Teachers 4th - 8th Standards
This problem asks the student to evaluate six numerical expressions that contain the same integers and operations yet have different results due to the placement of parentheses. It helps students see the purpose of using parentheses....
Lesson Plan
Alabama Learning Exchange

Alex: Miss Integer Finds Her Properties in Order.

For Teachers 4th - 6th
A lesson on: Order of Operations, Integers, Numerical Sentences, and Absolute Value.This lesson plan was created as a result of the Girls Engaged in Math and Science, GEMS Project funded by the Malone Family Foundation.
Activity
Ministry of Education and Universities of the Region of Murcia (Spain)

Ministerio De Educacion Y Ciencia: Figuras Magicas

For Students 3rd - 8th Standards
In Spanish. This site contains many games for practicing mental numerical calculation of basic operations.
Activity
Other

Basket Math: Words to Digits Practice

For Students Pre-K - 1st Standards
Use this site to practice writing the digits for a number when you see it written out using words. Then check your accuracy.
Unknown Type
Quia

Quia: Equivalent Fractions Concentration

For Students 3rd - 8th Standards
Use this website to practice finding equivalent fractions using a concentration game format. CCSS.Math.Content.3.NF.A.3.b Recognize and generate simple equivalent fractions
Interactive
Visual Fractions

Visual Fractions: Addition of Like Fractions With Number Line Models

For Students 3rd - 8th Standards
Test your aptitude at adding fractions on a number line. Enhance your skills using this interactive math game. Immediate feedback and examples provided.
Lesson Plan
Alabama Learning Exchange

Alex: Integers Are Rising and Falling Everywhere!

For Teachers 3rd - 8th
Students will expand from the idea of not only identifying signed numbers but to use them for numerical operations. This lesson plan was created as a result of the Girls Engaged in Math and Science, GEMS Project funded by the Malone...
Unit Plan
Khan Academy

Khan Academy: Evaluate Expressions With Parentheses

For Students 4th - 6th Standards
Solve multi-step expressions with parentheses. Place parentheses in an expression to make the expression equivalent to a given number. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a...